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KORG were nice enough to open up their volca sample SDK to 3rd parties so I took a few days to rip out Caustic's WAV editor and turn it into a stand-alone, multi-platform tool that lets you import, load, record, edit and upload samples for use with your KORG Volca Sample device. It was taken from my Caustic 3.2 working branch, so it even has a few more functions than what's in Caustic 3.1!

Features:

- Record your own samples using your device's built-in microphone.
- Load any uncompressed, mono or stereo WAV, at any sampling rate or bit depth.
- Apply any of 16 of Caustic's effects and preview them in real-time, then stamp down and apply more.
- Process waveform audio with Fade In/Out, Normalize, Amplify, Reverse, etc.
- Use Caustic's C-SFXR to generate retro video game sounds.
- Trim audio precisely, down to individual samples.
- View the frequency spectrum of your audio.

This is not an official KORG app, it is made by me, Rej Poirier / SingleCellSoftware using the KORG volca sample SDK.

The app is free, with no ads and no IAPs. If you'd like to support my work, please buy Caustic or any other of my apps. If you have them all... make a donation to the Red Cross. There are people out there who need the money more than I do this holiday season.

That usually happens if your cable isn't plugged in right and crackles during transfer or more likely that an alert sound played during the transfer. I'm not sure how to silence notification sounds on Win8 without closing all app that play sounds, but if you're transferring large samples, that could be the cause.

On both my phone (in airplane mode) and my computer and with multiple cables I have yet to successfully load a sample onto the volca. About 1 second into the transfer it throws the dcod error. I've changed the volume. It feels like I'm missing some key bit of information. The wav files I'm using aren't that long (1.2 sec) and they play fine in the caustic app. I have been able to successfully delete a sample using the app though. It now skips from 89 to 91. Loading a new sample into slot 90 (or any other) has not worked.

I occasionally hear little digital artifacts from the internal filter. Would this cause an issue? Could it be the batteries?

Ah, good to hear. Yeah they say if you have any kind of special EQ to turn it off. I guess Dolby definitely falls into that category. I've not found the "beats audio" on my HTC One to make any difference though.

Thanks for building this. I'm definitely purchasing other caustic apps to support. Now I can use my laptop for sample editing. I noticed that when you load samples then quit the samples stay. Is it possible to save a "Set" of samples then load the set? I started a few folders of sets but would have to load them into the software one sample at a time.

I got a volca sampler this weekend but wasn't aware of the smartphone app you needed to change samples. The ventor told me about this caustic editor and I found this page. But how does it work? How does it work with a windows pc or does that not work at all? And do I connect the headphones out of my computer to the sync in of the volca?

Guido: I don't actually own a Volca Sample, but AFAIK yes the app runs fine in windows (there is a windows download link on the top of this thread), and yes you are correct: the samples "play" into the Volca as audio, so you run audio out of your computer into the Sync In. As for the audio out of your computer, a headphone out is a sensible choice unless you happen to have a (usb or firewire) audio interface, in which case one of the dedicated outputs is likely to sound better.

i like your software very much! Is there a way for future versions to safe full sample sets on the computer? Or send a folder with prepared samples to the Volca over your app? It is very busy to add 100 single samples. I would appreciate to have different prepared sample-set folders on my Mac (for example House, Hip-Hop, old Drummaschines, Techno, Rare Groove, Experimental etc.) and can upload the whole bunch together - or going back to the default set.

Hi Joe, on a computer, it should be quite easy to accomplish this already. Just move the "samplelist.txt" file to somewhere else. Leave the WAV samples in the sample folder if you want, they won't be in the way. When the app starts and finds no sample list, it will create a factory default. Do this for each of your sets. When you want to swap sets, place the correct samplelist.txt in the app's folder, select all slots for sync (yes, this might be a bit tedious), and hit sync.

Hi, I got the Volca Sample today and saw this wonderful looking app, i iniially had success deleting various individual samples but when i tried to load a sample it came up with the dcon error and now all of the samples have been deleted. (I did not click "clear all samples") now whenever i try to load a sample Either from my PC or my phone (Samsung galaxy S5 Mini) it comes up with dcon error every time :-( What could you suggest I try in order to get it working ? I have tried turning off any other EQ settings etc

PS: thank you so so much for making this App, i doubt i would have bought the volca Sample had i not seen your app.

Hi, just got a volca Sample and obviously got your app. It's brilliant. Thanks so much for releasing it.

Seems a bit greedy to ask for a feature request but is it possible to be able to save kits? up to 100 slots or however many are taken up in your kit could be saved and loaded on your iPad etc. I can see myself wanting to change the volca sample set quite often with different setups and this would make it much easier rather than changing individual samples each time. Load up a kit and then sync it.

yeah, it's been asked a lot. It gets messy but I'm considering it, after I'm done updating my other apps. If you're on desktop or Android platforms you can copy your samples folder and the samplelist file as a set and swap them out later (and force re-sync of all slots) to get a similar result. Not so easy on iOS though I know.

Relating to joezz's question above - I have managed to bulk load multiple sample to the Caustic editor app. Even the though I've deleted the original samples and the samplelist text file, the previously loaded sample names still show in the Caustic editor except they are greyed out. So we still have to select the waveform icon, file, load, select sample and then done for each sample slot.

Is there a trick to formatting the samplelist text file so the new samples appear in the slots automatically?

Is there anyway to set long playing samples over entire song? Let's say like recorded presidential speeches or movie clips? I noticed they will only play for so long after the inital length of the pattern then they usually stop playing in song mode.

Thats good to know it's on the list that 3.2 is awesome though with the importing of stereo samples and being abile to add sepret fx on each and every individual sample done it for me ! Thats why when ever I make something upload it to soundcloud this devoloper always gets much props, this genus app kills all boredom!